:root{--color-gold: #d4af37;--color-gold-light: #f0d060;--color-gold-dark: #a08020;--color-bg-deep: #0a0a0f;--color-bg-card: #12121a;--color-bg-surface: #1a1a28;--color-text-primary: #f0e6c8;--color-text-secondary: #a09070;--color-green-felt: #1a4a2a;--color-tile-bg: #f5e6c8;--color-tile-border: #c8a060;--font-serif: "Noto Serif TC", serif;--font-sans: "Noto Sans TC", sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;background-color:var(--color-bg-deep);color:var(--color-text-primary);font-family:var(--font-sans);-webkit-font-smoothing:antialiased}#app{min-height:100vh}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--color-bg-deep)}::-webkit-scrollbar-thumb{background:var(--color-gold-dark);border-radius:3px}.text-gold-gradient{background:linear-gradient(135deg,#d4af37,#f0d060,#a08020);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.glass-card{background:#1a1a28cc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(212,175,55,.2);border-radius:16px}.btn-gold{background:linear-gradient(135deg,#d4af37,#a08020);color:#0a0a0f;font-weight:700;border:none;border-radius:8px;padding:12px 24px;cursor:pointer;transition:all .3s ease;font-family:var(--font-serif);letter-spacing:.05em}.btn-gold:hover{background:linear-gradient(135deg,#f0d060,#d4af37);transform:translateY(-2px);box-shadow:0 8px 24px #d4af3766}.mahjong-tile{background:linear-gradient(145deg,#f8f0d8,#e8d8b0);border:2px solid #c8a060;border-radius:6px;box-shadow:2px 2px #8a6030,4px 4px 8px #00000080;cursor:pointer;transition:all .2s ease;-webkit-user-select:none;user-select:none;display:flex;align-items:center;justify-content:center;font-family:var(--font-serif)}.mahjong-tile:hover{transform:translateY(-8px)}.mahjong-tile.selected{transform:translateY(-12px);border-color:#d4af37;box-shadow:2px 2px #8a6030,0 0 20px #d4af37cc,6px 12px 16px #0009}.mahjong-tile.man{color:#c0392b}.mahjong-tile.pin{color:#2980b9}.mahjong-tile.sou{color:#27ae60}.mahjong-tile.honor{color:#8e44ad}.mahjong-tile.flower{color:#e67e22}.game-table{background:radial-gradient(ellipse at center,#2a6040,#1a4a2a 60%,#0f2a18);border:4px solid #8a6030;box-shadow:inset 0 0 60px #00000080,0 0 40px #000c}@keyframes float{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-20px) rotate(5deg)}}@keyframes shimmer{0%{background-position:-200% center}to{background-position:200% center}}@keyframes pulse-gold{0%,to{box-shadow:0 0 10px #d4af374d}50%{box-shadow:0 0 30px #d4af37cc}}@keyframes slide-in-up{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.animate-float{animation:float 6s ease-in-out infinite}.animate-pulse-gold{animation:pulse-gold 2s ease-in-out infinite}.animate-slide-in-up{animation:slide-in-up .5s ease-out}.animate-fade-in{animation:fade-in .3s ease-out}.overflow-x-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}.no-select{-webkit-user-select:none;user-select:none}@media (max-width: 768px){.mahjong-tile{border-radius:4px}.mahjong-tile:hover{transform:none}.mahjong-tile.selected{transform:translateY(-8px)}}